Across
- 3. Looks like a bunch of grapes
- 8. Made up by 'c' shaped rings
- 9. The bronchi split into them
- 11. How gas exchange occurs
Down
- 1. The alveoli is surrounded by pulmonary -----------
- 2. The alveoli has a rich ----- supply
- 4. Found below your rib cage this moves it to allow your lungs to expand
- 5. Oxygen is carried out of the lungs in a red blood ----
- 6. What the lung are protected by
- 7. Another name for breathing
- 10. The atom which diffuses into the blood supply